From Gaijin Tonic:
A truly bizarre novelty restaurant, “Alcatraz ER” is labeled the “Shibuya Medical Prison.” The owners must have been indecisive when picking the concept- I can’t tell if it’s meant to be a prison, a hospital, or a medieval dungeon. But who cares? This just adds to the eccentric appeal, as far as I’m concerned.
Upon arrival, you have to state your blood-type to enter (I don’t know mine, which made things confusing.) You are then handcuffed by girls in nurse-outfits (mmm, kinky!) who lead you to your “cell”- a dingy room which resembles a medieval dungeon.
Cocktails with names like “Influenza” and Acute Mental Stabilizer” are served in test tubes, or you can even drink from a hospital drip. Meals are delivered in those metal dishes surgeons use during operations. The food isn’t so tasty but presumably it’s better than actual prison food.
Dinner is occasionally interrupted to an escaped lunatic in a Jason mask, who runs around the place, terrorizing customers, (but stops short of bum-raping men in the toilets.)
While I was there, an unsuspecting birthday girl on another table was thrown the over the knee of a maniacal doctor, who prodded her arse with a giant syringe while she squealed.
I’m sure you can tell it’s a very classy establishment!
The food and drinks in this place ain’t cheap, but it’s worth a trip just for the novelty value.